Banding machine



July 28, 1925 J. w. NASMITH BANDING MQCHINE Eilegl July 8, 1919 Manchester, England,

UNITED STATES PATENT OFFICE.

JOHN WILLIAM NASMITH, OF MANCHESTER, ENGLAND.

BANDING MACHINE.

Application filed July 8,

To all whom it may concern:

Be it known NASMITH, a subject of that I, J OHN WILLIAM the King of Great Britain, residing at Leegate Heaton-Mersey,

have invented new and useful Improvements in Banding Machines, of which fication.

the following is a speci- My invention relates to apparatus for applying adhesive substances to bands of paper or other material to be afterward applied to boxes or the like,

and the invention has particular reference to machines capable of being used for gluing strips of ornamental or decorative edgings or borderings to to the a main band before its application box. In my United States Patent No. 1,208,819 granted to me December 19,

1916, it is explained desirable that the bordering be placed on the machine in that it is very strips should (page 3 lines 65 to 85) their proper relative positions to each other and to the main band to which they are to be attached. The

Figs. 5 and 6 of the two gluingrollers operating in two a gap between glued edgings A the main band A on arrangement has two drawbacks.

pairs of rollers co mechanism, illustrated in said patent, comprises and two stripping rollers separate glue tanks with them through which the are passed and united to the roller D This The two nstitute a heavy load, the

inertia of which has to be overcome by the starting device every time the band is pulled forward and whose momentum must bev arrested by the catch when the pull ceases and it is further very inconvenient to pass the glued edgings through the gap between the tanks and unite maln band.

them properly with the The object of the invention is therefore to provide improved means for gluing not only the underside of a band but also to transfer glue from the gluing roller toa portion of the upper surface of such band or bands and along one or both margins and thus make it possible to glue both the main band and the strips and unite the three on a single gluing roller, rollers and two plifying both the the operator.

In order that th instead of employing a pair of tanks, thereby greatly simmachine and the work of e invention may be underment the band inoperative for a time,

position shown in Fig.

1919. Serial No. 309,467.

stood a sheet of drawings is appended in which Fig. 1 is a side elevation of the parts of the machine involved.

Fig. 2 is a partial plan of some of the parts shown in Fig, 1.

Fig. 3 represents the relative position of the band and strips. Fig. 4 is a partial side elevation showing the band and strips when moved out of contact with the gluing roller, and

Fig. 5 shows a modified disposition of certain parts.

Figure-'6 is a diagrammatic detail plan view to illustrate suitable lateral positions of the small rolls relatively to the large roll.

The following description in conjunction with the drawings will elucidate the arrangement. T is the glue tank, water-j acketed in the usual way, and running in open bearings formed in the sides of the tank T is the supply roller P, partially immersed in the glue and positively driven the mois pulled and the swinging and compensating roller W is displaced in the direction of the arrow. Mounted on ledges on each side of the tank T is a stand N having open bearings formed therein to carry the shaft of the gluing roller G. In order to regulate the film of glue that can pass round between the rolls G and P which are of equal length, the stud N is adjustable along the track 23 by suitable means such as a screw 22, the superfluous glue brought up by the roll P being squeezed out. Fixed on each stand N is a pivot 1 on which swings freely a frame S normally resting, when the machine is at workon the projection 2 cast on the stand N. When it is necessary to remove the rolls G and P for cleaning or to separate the bands from contact with the roller G in case the machine must remain the whole frame S and its appurtenances is turned over to the 4. I The arms S, one on each side, are rigidly connected by transverse bars 3 and 4, either all cast together or securely bolted together. The guide roller 5 runs freely on conical pivots 6 fixed in the swinging frame Movable along and fixable an'ywhere on the bar 3 are the guide plates 7, which have forked ends to embrace the rod 8 fixed in projections cast on the frame S and which serve to keep the band A between the guides 7 when the frame S is turned over. The edging strips 9 pass under a guide roller 10 running on conical points 11 fixed in the frame S and a rod 12 lifts them when the frame S is turned over. Means, presently to be described, guide the edging strips in their proper relative positions onto the glue roller G so that the main band overlaps the margin of the strip a suitable amount as shown in Fig. 3. It is obvious that the whole undersurface of the strip will be glued by contact with the roller G but that the underside of the main band will not be glued where it is superposed on the strip. It is therefore necessary to put a film of glue along the margins of the strips on the upper surface as wide as the overlap in order that the strips may adhere to the main band and leave the roller "G as one united band glued all over the underside. This may be accomplished in the following manner. Bearings 13 are formed in the frames S to receive a shaft B upon which are supplemental gluing rolls or rollers C movable longitudinally along and fixable anywhere on the shaft B, which is geared to the glue roller G so that the surface speed of rolls G and C are identical. By longitudinally adjusting the roll C on the shaft B, as just described, the amount of the overlap is regulated so as to obtain the desired width of the transferred film of glue, as presently described. When "in working position the roll or rollers C are pressed down on the roller G by springs 14: resting on the shaft ends. The width of the surface of the roll C is made about double the amount that the main band must overlap the st ips as just explained and they are adjusted on the shaft B so that half their width presses on the margin of the strip and the other half is exposed and takes up glue from the roller G. In order that the glue so taken up may be transferred to the upper margin of the strip, scrapers or spreaders 16' attached to the suitably inclined ends 16 of the arms 15 spread the glue onto that part of the surface of C which receives no glue from the roller G and thus transfer it to the margin of the strip as in dic ated by the dotted lines in Figs. 3 and 5. The spreader 16 may be a thin copper blade resting or trailing on the surface of the roll C which may be slightly smaller in diameter where it rests on the strip if stout paper is used. If desired a further simplification may be made by dispensing with the rolls t) and shaft B and allowing the spreading blade 16 to rest directly on the roller G as shown in Fig. 5. The scraper or spreader blade 16 is preferably made thin, as described, to be effective. Since it wearsaway, in use, and must be renewed, it is preferable to secure it in place by means such as a screw. It is not necessary to adjust the blade 16 relatively to the arm 15, because the latter is itself adjustable along the bar 4, with the bracket 17, when the latter is adjusted as presently described.

Brackets 17 can be moved along and fixed anywhere on the bar 4 and carry pins 18 on which pivot the spreader arms 15 which can be turned back when it is necessary to remove the shaft B for cleaning. A stud 19 also fixed in the bracket 17 carries a freely running double flanged bowl 20. One of the flanges is fixed and provided with a boss on which the other flange can be adjusted to suit the width of the strip to be used and a pin -21 fixed in the bracket 17 serves to keep the strip between the flanges when the frame S is turned over.

The operation is as follows. As shown by comparing Figures 1 and 6, each strip 9 passes under the guide roll 20 and onto the glue roll G which carries a coating of glue, so that the underside of said strip takes up glue over its full width. Said strip then passes under the roll C which, as hereinbefore stated, is adjusted along the shaft B so as to partly overlie the strip 9 while its-other part contacts with the roll G and picks up a film of glue therefrom as indicated at '2 in Figure 6. The scraper 16 (shown in section in Figure 6) spreads this film of glue over the full width of the surface of the roll C which then transmits glue onto the upper surface of the strip 9, as atw. The strip 9 then passes along and the main band A, arriving around the roller 5, extends marginally onto, or overlaps, the glued portions 02 of the two strips 9. The remainder of the under surface of the main band A between the inner edges of the strips 9, and the under surfaces of the strips 9 are completely coated with glue taken from the roll G. The rolls C are secured in their adjusted positions along the shaft B by any suitable means such as by set screws 0 tapped in the hubs of the rolls and adapted to bind against the shaft.

In this way by the use of a single gluing roller one or two strips may be properly united to the main band, the whole undersurface suitably glued and all three leave the single gluing roller as one united band thus greatly simplifying the machine and the work of the operator.

In banding a box the main band is usually superposed on the strip as the work looks nea-ter than it would otherwise do; but by the present invention the margins of the main band can be glued and the decorative edgings superposed thereon by suitably arranging the guide rollers and spreaders.

Other methods of transferring glue from the gluing roller to the margin of a bandor strips are possible without departing from the spirit of the invention. 1

1. A machine for adhesively uniting two overlapping strips and adhesively coating the under surface of both of the united strips, said machine having a glue roll, means for directing the strips on to the roll, one in advance of the other, and means for delivering on to the upper surface of the underlying strip a strip of glue equaling in width the amount which the two strips overlap, said delivering means being laterally adjustable.

2. In a gluing machine, a glue tank, a gluing roll, a supply roll for transferring glue from said tank to said gluing roll, means for transferring glue from said gluing roll to the upper surface of a strip of paper trained over said gluing roll, said means comprising a supplemental roll and an inclined scraper associated therewith, said supplemental roll being adjustable to vary the width of the strip of glue deposited on said upper surface.

JOHN WILLIAM NASMITH. 

